110 KV Substation Design

Due to the rapid growth of our national economy,electricity has become an important factor restricting China's economic development,every area is in the construction of a series of power distribution equipment.Substation is the important part of power system,which directly affects the safety and economic operation of the power system.It is a link between power plants and users,plays the role of transformation and distribution of electricity.In a word,we need to design a series of power supply substation for every area of our country,to coordinate various professional systems and various stages of the work.It aims to obtain the optimal comprehensive benefits of technology economy.Therefore,the design of 110 k V substation has become an important subject.The current status of domestic substation is there are lots of two terminals which is not high reliable,difficult maintenance and not economical.The demand for substation is more and more high reliable.The really good design theory of substation should be economical,intensive and efficient.This paper mainly discusses the process of the design of 110 k V substation.Firstl y,according to the original data of the substation,the load is analyzed.To meet the saf ety,economic and reliability of the conditions,choose the main transformer capacity a nd the number of parameters according to the size of the load and the importance.Sel ect the corresponding model of the main transformer according to the parameters.An alysize and compare of the characteristics of the two main wiring,and choose the best according to the requirements of the load.Before selecting and checking the electrica l equipment,it is necessary to carry out short-circuit calculation,short-circuit current and other parameters.And discusses the equipment selection and calibration.It includ es circuit breaker matching and calibration.Also includes the choice of bus.Select isolation switch and check,Type selection and calibration of mutual inductorThis paper presents how to design the 110 k V substation by the original practical case.This paper mainly discusses the analysis of the original data of the substation,the primary analysis of the substation,the display of the main equipment list in the substation.Through the theory and practice,it presents the depth of the verification of the 110 k V substation with intensive,efficient,energy-saving theory.At the same time,the design of the substation in the substation should consider the influence of the factors such as easy maintenance,easy control,safety,environmental protection and so on.